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author | 2022-11-13 23:46:45 +0530 | |
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committer | 2022-11-13 23:46:45 +0530 | |
commit | 9468226a9e2e2ab8cdd599f1d8538e860ca86120 (patch) | |
tree | 0a77ada226d6db80639f96b438bf83e4e756edb5 /env/lib/python3.10/site-packages/pip/_internal/models/target_python.py | |
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Diffstat (limited to 'env/lib/python3.10/site-packages/pip/_internal/models/target_python.py')
-rw-r--r-- | env/lib/python3.10/site-packages/pip/_internal/models/target_python.py | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/env/lib/python3.10/site-packages/pip/_internal/models/target_python.py b/env/lib/python3.10/site-packages/pip/_internal/models/target_python.py new file mode 100644 index 0000000..744bd7e --- /dev/null +++ b/env/lib/python3.10/site-packages/pip/_internal/models/target_python.py @@ -0,0 +1,110 @@ +import sys +from typing import List, Optional, Tuple + +from pip._vendor.packaging.tags import Tag + +from pip._internal.utils.compatibility_tags import get_supported, version_info_to_nodot +from pip._internal.utils.misc import normalize_version_info + + +class TargetPython: + + """ + Encapsulates the properties of a Python interpreter one is targeting + for a package install, download, etc. + """ + + __slots__ = [ + "_given_py_version_info", + "abis", + "implementation", + "platforms", + "py_version", + "py_version_info", + "_valid_tags", + ] + + def __init__( + self, + platforms: Optional[List[str]] = None, + py_version_info: Optional[Tuple[int, ...]] = None, + abis: Optional[List[str]] = None, + implementation: Optional[str] = None, + ) -> None: + """ + :param platforms: A list of strings or None. If None, searches for + packages that are supported by the current system. Otherwise, will + find packages that can be built on the platforms passed in. These + packages will only be downloaded for distribution: they will + not be built locally. + :param py_version_info: An optional tuple of ints representing the + Python version information to use (e.g. `sys.version_info[:3]`). + This can have length 1, 2, or 3 when provided. + :param abis: A list of strings or None. This is passed to + compatibility_tags.py's get_supported() function as is. + :param implementation: A string or None. This is passed to + compatibility_tags.py's get_supported() function as is. + """ + # Store the given py_version_info for when we call get_supported(). + self._given_py_version_info = py_version_info + + if py_version_info is None: + py_version_info = sys.version_info[:3] + else: + py_version_info = normalize_version_info(py_version_info) + + py_version = ".".join(map(str, py_version_info[:2])) + + self.abis = abis + self.implementation = implementation + self.platforms = platforms + self.py_version = py_version + self.py_version_info = py_version_info + + # This is used to cache the return value of get_tags(). + self._valid_tags: Optional[List[Tag]] = None + + def format_given(self) -> str: + """ + Format the given, non-None attributes for display. + """ + display_version = None + if self._given_py_version_info is not None: + display_version = ".".join( + str(part) for part in self._given_py_version_info + ) + + key_values = [ + ("platforms", self.platforms), + ("version_info", display_version), + ("abis", self.abis), + ("implementation", self.implementation), + ] + return " ".join( + f"{key}={value!r}" for key, value in key_values if value is not None + ) + + def get_tags(self) -> List[Tag]: + """ + Return the supported PEP 425 tags to check wheel candidates against. + + The tags are returned in order of preference (most preferred first). + """ + if self._valid_tags is None: + # Pass versions=None if no py_version_info was given since + # versions=None uses special default logic. + py_version_info = self._given_py_version_info + if py_version_info is None: + version = None + else: + version = version_info_to_nodot(py_version_info) + + tags = get_supported( + version=version, + platforms=self.platforms, + abis=self.abis, + impl=self.implementation, + ) + self._valid_tags = tags + + return self._valid_tags |